foolish or extravagant love or admiration
"And you are infatuated, which is a very different thing from love. Infatuation is like a roller coaster ride crazy, scary and somewhat fun, while love is something more down to earth, less exhilarating, less dramatic but more real." letter to Salon.com, January 6, 2011
About the word:
An infatuation, by definition, is an emotion that shouldn't be taken too seriously. The word's etymology makes the same point. It traces back to the Latin for "foolish" or "silly," as does another insulting term: fatuous.